Island



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3 Sheets--Sheet 1 s E N I nn. G .A .NlM G GN GT. I W. Ww Bw .F Gm &V ETD TG EN un P MM Bw` .W TURRW M2 S7, E3 R0 P4 nm N Patented May 21 1889.

(No Model.) 3 Sheets-Sheet 2.

J. BARTLE'I'T 8v G. B. WIGGIN. PRESSEE FOOT IIITING DEVICE EUR SEWINGMACHINES.

No. 403,725. Patented May 2141889.

(No ModelL 3 Sheets-Sheet 3.

J. BARTLETT & G. B. WIGGIN. PRESSER FOOT LIPTING DEVCE FOR SEWINGMACHINES.

Patented May 2l 1889.l

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NTTED STATES ATENT FFICE.

JONATHAN BARTLETT, OF EPPING, AND GEORGE B. VIGGIN, OF SUTII NE\VMARKET, NEIV HAMPSHIRE, ASSIGNORS OF ONE-HALF TO JOHN \V.

H OARD, OF PROVIDENCE, RHODE ISLAND.

PRESSER-FOOT-LIFTING DEVICE FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 403,725, dated May 21,1889. Original application filed July 28, 1887, Serial No. 245,561.Divided and this application filed May 3, 1888. Serial No. 272,745.

To all whom it may concern:

Beit known that we, J ONATHAN BARTLETT, of Epping, and GEORGE B. VIGGIN,of South New Market, in the county of Rockingham and State of NewHampshire, have invented certain new and useful Improvements inPresser-Foot-Lit'tin g Devices for Sewing-Machines; and we do herebydeclare that the following is a full, clear, and exactdescription of thein- Io vention, which will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to letters of reference marked thereon, whichform a part of this specification.

Our invention relates to sewing-machines generally, but moreparticularly to the class of waxed-thread machines adapted for sewingshoes or other articles made from leather or zo other kindred material;and it has special reference to the presser-foot and lifter and partsauxiliary thereto.

In the accompanying drawings, Figure l is a front elevation of a machineembodying our invention. Fig. 2 is a side elevation. Fig. 3

is a vertical section from front to rear; Fig.

4, a detail showing lever U and adjacent parts.

Similarletters represent like parts in all the figures.

A is the base of the machine, and B B are the two vertical standards forsupporting the mechanism.

O is the driving-shaft, which passes through the standards B B,havingthe driving-wheel D at one end and the cam E for reciprocat` ing theneedle at the other. Secured to the driving-shaft O, between thestandard B and wheel D, is a gear, F. A small gear or pinion, G, isjournaled on the standard B under 4o the gear F, and engages with saidgear, while a third gear, H, engages with the gear G and is securedunder said gear upon a shaft, I, which passes through the standards B B.To t-he opposite end of said shaft from the gear H is a cam, J, forvibrating the needle-carrying frame. Keyed to the shaft O, between thestandards B and B', is another cam, K, also for a purpose hereinafter tobe described. L

is an oscillating frame or standard, which is (No model.)

pivoted to the top of the standard B ahdrests against the same. Thisframe L has a box or casing, M, in which the cam E and other parts ofthe machine are adapted to work; and N is an opening in the trame L, inwhich revolves the cam J. The cam E is curved on one side, E', andstraight on the other side, E2, so that when the cam revolves in onedirection the curved surface will ride over and operate the blocks Z1o', while any turning to the opposite direction willv bring theshoulder, which is formed by the straight side D2, in contact with theblocks and prevent any further turning in that direction.

R R are brackets extending out beyond the front of the machine, andthrough vertical holes in the ends of these brackets the presserfoot barS is adapted to slide. The presserfoot S is attached to the presser-footbar in any appropriate way. A coil-spring, S2, encircles the bar S,between the bracket R and an adjustable sleeve, S3, on said bar. Thefunction of this spring is to press the presserfoot down upon the hornupon which the goods are placed and seen.

Pivoted to the bracket R is a lever, T, one end of which has a concaverecess upon its upper side, which is adapted to press against the underside of a roller, t, journaled to the bar S above the bracket R. To theother end of the lever T is loosely pivoted a vertical rod, t.

U is a lever, which is pivoted to the standard B on the other side ofthe shaft C from the rod t', and this lever has a hole through which thelower end of the rod t passes, Vand which is large enough to allow of afree movement of the rod in said hole. The lower end of the rod t isscrew-threaded, and has a nut below the lever U to keep the rod andlever together and to adjust them relatively to each other. The lever Upasses under the cam K, and is adapted to be held against the said camby the nut on the end of rod f. A handle, u, is attached to the free endof the lever U to allow the presser-foot to be raised by hand.

The presser-foot'is raised by the handle of the lever U, and thematerial to be sewed is placed between the presser-foot and the horn W,When the former is allowed to drop upon the material and hold it inplace. The position of the parts will then be as shown in Fig. l. Therevolution of shaft C causes the cam K at the proper period to operatethe lever U, and thus raise the presser-foot S, so as to alloW thematerial or Work to be fed onward. The revolution of the shaft C Willalso cause the shaft I to revolve through the instrumentality of thegears F G H, and just after the cam K has begun to operate the lever Uto raise the presser-foot the cam J will come in contact with therectangular piece 'L' and cause the frame L to oscillate to the left.The needle-bar P being hung on this standard will also be carried to theleft, and the needle being through the material Will carry the same withit to the end of the stroke.

The' distance of the oscillation of the frame L determines the length ofthe feed of the material to be sewed and also of the stitch. Thedistance is regulated by the lever V and screw-pin Z, before named. Byadjusting the pin Z in the slide k2 nearer to the fulcrum 7c, a longerfeed and stitch are obtained.

O ur machine can be used for sewing almost any material; but it is moreparticularly adapt.- ed for sewing shoes, either turned or Welted,the'narroW edge afforded by the horizontal top 112 of the horn WV bein gparticularly adapted for Welted goods.

This application being one of the divisions of our original applicationsfiled July 28, 1887, Serial No. 245,561, We do not herein claim anythingclaimed either in that application or in either of the other divisionapplications Serial Nos. 272,746 and 272,747, filed May 3, 1888.

l. The combination of the presser-foot and its bar, brackets R R,frictional roller t, lever T, vertical rod t', pivoted to said lever,lever U, the nut serving to hold together and to adjust relatively thislever and rod, and cam K on the revolving short driving-shaft C, theseparts being all located above the table and co-operating substantiallyas shown and described.

2. In combination with the presserfoot bar, the brackets R R', roller t,lever T, the rod t', pivoted to said lever, cam K on the short revolvingdriving-sham and lever U, having a handle on its free end and pivoted atits other end to a standard, all located above the table, substantall yas and for the purposes described. l

JONATHAN BARTLETT. GEORGE B. VVIGGIN.

NVitnesses:

GEORGE W. HILLIARD, WILLIAM II. BELKNAP.

